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The South American sea lion (Otaria flavescens, formerly Otaria byronia), also called the southern sea lion and the Patagonian sea lion, is a sea lion found on the western and southeastern coasts of South America. It is the only member of the genus Otaria. The species is highly sexually dimorphic. Males have a large head and prominent mane.
The seals of the genus Zalophus present a striking sexual dimorphism, since the adult males have a pronounced sagittal crest, and weigh, in the Californian species, between 300 and 380 kg with 240 cm long, and the females 80 to 120 kg with between 180 and 200 cm.
A male California sea lion weighs on average about 300 kg (660 lb) and is about 2.4 m (8 ft) long, while the female sea lion weighs 100 kg (220 lb) and is 1.8 m (6 ft) long. The largest sea lions are Steller's sea lions , which can weigh 1,000 kg (2,200 lb) and grow to a length of 3.0 m (10 ft).
An eared seal, otariid, or otary is any member of the marine mammal family Otariidae, one of three groupings of pinnipeds.They comprise 15 extant species in seven genera (another species became extinct in the 1950s) and are commonly known either as sea lions or fur seals, distinct from true seals (phocids) and the walrus ().
California sea lion. Z. californianus (Lesson, 1828) Pacific North American coast (dark blue indicates breeding grounds) Size: 165–220 cm (65–87 in) long; 275–390 kg (606–860 lb) [23] Habitat: Neritic marine, oceanic marine, intertidal marine, and coastal marine [24] Diet: A variety of fish and squid [24] LC 180,000 [24] Galápagos sea lion
Otarioidea is a superfamily of pinnipeds that includes the families Odobenidae, Otariidae and their stem-relatives. [1] [2] In the past when the pinnipeds were considered to be a polyphyletic group of marine mammals, a few points of cranial and dental morphology suggested that the otarioids originated from a line of bears. [3]